4645520 has 40 divisors (see below), whose sum is σ = 11784960. Its totient is φ = 1688960.

The previous prime is 4645507. The next prime is 4645523. The reversal of 4645520 is 255464.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 4645520.

It is not an unprimeable number, because it can be changed into a prime (4645523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760 + ... + 3519.

It is an arithmetic number, because the mean of its divisors is an integer number (294624).

Almost surely, 2^4645520 is an apocalyptic number.

4645520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

4645520 is the 1760-th pentagonal number.

It is an amenable number.

4645520 is an abundant number, since it is smaller than the sum of its proper divisors (7139440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4645520 is a wasteful number, since it uses less digits than its factorization.

4645520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303 (or 5297 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4645520 is about 2155.3468398381. The cubic root of 4645520 is about 166.8571333628.

The spelling of 4645520 in words is "four million, six hundred forty-five thousand, five hundred twenty".